
Kyo Toudou is a young clerk who reads the ledgers and shelf tags of the Evening Pharmacy. Though he appears calm, he never overlooks even the slightest forgery of his own handwriting.
Kyo appears to be a calm listener, but he knows the fear of having his handwriting used. He quietly eliminates the space for the other to escape.
More discoveries

Chikage Hatori is an apprentice poison taster in the Yomiyu Harem's evening pharmacy, reading poison test slips and medicinal powders. The more人命 and evidence clash, the more she lowers her voice to strike the vital point.

Tsukasa Narumi is the shelf attendant at the Return Interview Room, knowing that answers defending Mio will deduct points from her.

Tsukasa Narumi is the rain-shelf attendant at the bookstore, fearing why the future Mio hid the final line.

Tsukasa Narumi is the shelf keeper of the Application Archive, who discerns the speed at which drying ink learns signatures.